231622104 has 32 divisors (see below), whose sum is σ = 661777920. Its totient is φ = 66177696.

The previous prime is 231622099. The next prime is 231622163. The reversal of 231622104 is 401226132.

It is a super-2 number, since 2×231622104² = 107297598122773632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689184 + ... + 689519.

It is an arithmetic number, because the mean of its divisors is an integer number (20680560).

Almost surely, 2^231622104 is an apocalyptic number.

231622104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231622104 is an abundant number, since it is smaller than the sum of its proper divisors (430155816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231622104 is a wasteful number, since it uses less digits than its factorization.

231622104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378719 (or 1378715 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 231622104 is about 15219.1361121451. The cubic root of 231622104 is about 614.1295584738.

Adding to 231622104 its reverse (401226132), we get a palindrome (632848236).

The spelling of 231622104 in words is "two hundred thirty-one million, six hundred twenty-two thousand, one hundred four".